Reverberatory furnace.



PATBNTED @6.15, 1905.

A, M.. GAYLORD., RRVERBERATORY FBNAGE.

APPLICATION FILED SBlT. 20,1904.

2 SHEETS-SHEET 1.

No. 797,352. PATENT@ AUG. 15, 1905. A. M. GAYLORD.

BEVERBERATRY FUBNAE.

APPLXGATIOII FILED snm?. 20,1904.

2 SHEETS-SHEET 2.

TTNTTTD 8T ARTHUR M. GAYLGRD, UF AUBURN, NEW' iORK.`

Speceaton of Letters Patent.

Patented Aug'. 1.5, 1905..

Application iilerl September 20, 1904. Serial No. 225,202.

To all?, 'wh/ont t infr/y concern:

lie it known that l, ARTHUR M. G-AYLORD, of Auburn, in the county ofCayuga, in the State of New York, have invented new and usefulimprovements in .Reverberatory Furnaces, of which the followir'ig, takenin connection with the accompanying' dr'awing's, a frrll, clear, andexact description.

This invention relates to improvements in reverberatory furnaces of theclass set forth in my Patent No. 560,406, of May 19, 1896, and isadapted to be used for melting' metals which require a hig'h degree ofheat.

The primary object of my present invention is to expedite the melting ofmetals and to reduce the cost and labor in handling' the molten matter.

A further object is to facilitate the work of repairs, and particularlythe substitution of new linings for' the old ones, which have beenrendered unlit for further use.

Other objects and uses will be brought out in the following description.

In the drawings, Figure 1 is a side elevation of my improvedreverberatory furnace and its support. Fig. i). is a longitudinalvertical sectional view through the fur'nace seen in F ig'. 1. liig. 23is a transverse sectional view 'taken on line 3 3 of Fig. 2. Fig'. 4 isa top plan of the lower section ofv the receiving pot or ladle for themolten metal and the car'- rier' therefor.

In carrying' out the objects stated I. provide an upright standard 1,with a horizontal track 2, having' at one end an upright plate or shield3, and to this 'upright plate is secured at a suitable height ahydrocarbon-burncr f1, of any desired construction,adapted for theburning of oil as a fuel, said upright plate constituting' what may betermed the front of the apparatus and is formed withrearwardlyprojecting' shields and a forwardly-projeetingbracket (3, forthe purl'iose lpresently described.

hlounted upon and movable along' the horizontal trackis a carriage 7,having' suitable ways 8 for receiving' a substantially sen1icylindricalladle or melting-pot 9, which :is Inovable with said carriage toward andfrom the burner-tand front plate 8 between the shields -5 and also hasan independent movement along and upon the ways 8 of the carriage 7, asshown by dotted lines rn Fig. 1. The

front ends of the bottom and sides of this ladle are inclined upwardlyat 10 and abut against a suitable face 11 of heat-refracting materialwhich is secured to the rear face of the plate 3, said plate 3 and itsinner facing' 11 being' provided with a suitable oprnring` 12, which isalined with the bur'ner a for' admitting the products of combustion intothe front end of the ladle or chamber i). This ladle is adapted to beremoved from the earriage and placed upon a suitable carrier 13, Fig.et, and for this purpose it is provided with diametrically oppositetrunnions 14 and a rear-end lug' 15, by which the ladle is supportedupon the carrier 13 in the manner seen in Fig. f1, said ladle being'provided with a suitable lining 16 of heat-refracting' rnatcrial, suchas iire brick or clay., and owing' to the fact that the front ends ofthe bottom and sides of the ladle are inclined forwardly it is evidentthat a limited quantity of molten metal may be retained in the ladle andmay be transported to any locality where the molten nretal is to bepoured.

Hinged at 17 to the upper' end of the front plate 3 and directly abovethe ladle Si is a segment 18 of a shell which forms a continuation ofthe ladle when the latter is in its nor mal position for receiving' themolten metal from a shell 1i) and, together' with the par't i),constitutes what may be termed the Hprimary heating-chamber, composed oflower and upper sections Si and 18, having' their' meeting' faces 2Odisposed in an inclined plane inclinin,r l downwardly and forwardly fromtheir rear ends, the upper part 18 being' provided with a lining' 21 andserves as a closure for the open upper side of the lower part 9, when inits normal position (seen in Figs. 1 and 2) for r'eeeiving the moltenmetal from the chamber 19. This upper section 18, being' pivoted at 17,may be swungI to the position shown by dotted lines in Fig. 1. in whichposition it r'ests upon and is supported by the bracket 6 and, togetherwith its lining, provided with an opening 2Q in its top wall. the upperportion of which opening is conical or' hopper shape and receives adouble-cone section 23, of [ire-brick or' other lieat-r'elr'act ingmaterial. This double-cone section 23 is provided with a centralopening' Q11, and its lower' conical end is fitted snugly in the conicalopening 22.

The upper shell 19 is mounted upon the upper face of the swingingsection 18 and is preferably divided vertically through its longitudinalcenter' to form opposite half scctions, has best seen in Fig. 3, withinwhich is fitted a lining' 25 of heat-refracting' material, said sectionsbeing secured together face to face by clamping-bolts 26.

At the center of the bottom of the shell 19 is an opening 27, which isalined with the opening' 24C in the conical section 23 and has its lowerend enlarg'ed or iiaring to form a conical recess 28, which ts snuglyupon the upper conical end of the section 23. r1`he front and rear endsof the shell, or rather of the inner lining' 25, inclines downwardlytoward the opening 2T, the front end being' provided with a swingingclosure 29, which is hinged at 30, while the rear end is provided with asimilar closure 31, which is hinged at 32, and each closure is dividedhorizontally through its center to form independentlymovable uppersections which are hinged at 33 so that the upper parts of the closuresmay be swung downwardly independently of the lower sections whendesired.

The upper wall of the chamber 19 and its lining are formed with anopening' 34, in which is fitted a hopper 85, the upper end of whichextends some distance above the top of the shell 19, while its lower endextends into the interior of the shell 19 and has a lateral offset 36,which projects horizontally beyond the vertical plane of the opening 2T.This hopper is adapted to receive the metal to be melted, which metalmay be placed in the hopper by hand or otherwise and is immediatelyprecipitated into the extension 36, which is directly over the opening'27, and therefore the product-s of combustion from the burner 11 arefree to pass upwardly through the openings 9,1 and 27 and impingedirectly against and surround the horizontal extension 36, so that it isheated to a very high degree and quickly melts the metal at or near thedischarge end of the hopper 35. This is an important feature ofmyinvention, for the reason that the discharge end of the hopper withinthe shell 19 contains only a limited amount of metal, which is thereforereadily melted and iiows into the front end of the shell, while at thesame time the metal in the upper portion of the hopper within the shellis softened and gradually melted` and thereby Qbviates any liability ofchoking' or clogging of the metal in the extension 36.

The molten metal which is discharged into the front end of the shell 19flows backwardly into and through the openings 27 and 24, and thus intothe ladle 9, where it is maintained in a highly molten state until readyfor pouring'. When this is desired, the upper shell 19 is removed bysuitable cranes or otherwise, and the upper section or cover 18 of theladle is then swung upwardly and forwardly to the position shown bydotted lines in Fig. 1, whereupon the ladle may be drawn backwardly andremoved from the car 7 by the carrier 13.

claim, and desire to secure by Letters Patent, is-

1. A furnace comprising two chambers one above the other and connectedby a vertical passage, a fuel-inlet communicating with the lower chamberand a hopper in the upper chamber having a portion thereof overlying thevertical passage.

Q. A furnace composed of two chambers one above the other and connectedby a vertical passage, the lower chamber having a fuel-inlet and theupper chamber having a movable closure at one end divided horizontallyto form two sections which are hinged to each other whereby the uppersection may be swung independently of the lower section.

3. A furnace comprising' two chambers one above the other and connectedby a vertical passage, the lower chamber having' a fuel-inlet and theupper chamber having an inlet for the material to be melted, said upperchamber having' its opposite ends provided with closures, each of whichis horizontally divided to form lower and upper sections which arehinged tog'ether at their meeting edges whereby the upper section may beswungdownwardly upon the lower section.

4L. In a furnace, the combination of an uprig'ht wall having afuel-inlet', a heating-chamber composed of lower and upper sectionshaving one end open and abutting against said wall at opposite sides ofthe inlet, the lower under the upper section, and the Lipper sectionbeing hinged to the upright wall and adapted to swing toward and awayfrom the lower section.

5. 1n a furnace, the combination of an uprig'ht wall having afuel-inlet, a heating-chamber composed of lower and upper sectionshaving one end open and abutting' against said wall at opposite sides ofthe inlet, the lower section being movable from under the upper sectionand the upper section having an inletopening' in its top, and a burnerdischarging through the fuel-inlet into said chamber.

6. ln a furnace, the combination of a track and upright wall having afuel-inlet, a carriage movable upon the track, a heatingchamber'composed of lower and upper sections having one end open and abuttingagainst said wall at opposite sides of the inlet, the

upper section being secured to the uprightwall and the lower sectionbeing mounted upon the carriage whereby it may be withy drawn from underthe upper section, said upper section being provided with aninlet-opening in its top.

'7. In a furnace of the class described, the

l combination of a track and an upright wall I having la fuel-inlet, agas-burner at the inlet,

a carriage mounted on the track, a heatingi chamber composed of lowerand upper sec- 1 tions having one end open and abutting against Having'described my invention, what I section being movable longitudinallyfronr 'said upright wall, the upper' section being' hinged to theupright wall and the lowersection being mounted upon the carriagewhereby the lower section may be moved from under the upper section.

8. ln combination with a track and a carriage mounted thereon, alieating'cliainber having' one end open and a burner discharg'- ing'into said open end, said chamber consisting' of lower and uppersections, one of said sections being' mounted on the carriage whereby itmay be moved from the other section.

9. A. 'furnace compri sing' two heating-chambers one above the other andconnected by a Vertical passag'e, a burner discharging' into the lowerchamber, a hopper projecting' into the upper chamber and having' aportion thereof overlying' the vertical passage,said upper chamber beingdivided vertically through its longitudinal center for forming' oppositesections and means to clamp said sections together.

'10. In a furnace of the class described, two chambers one above theother and connected by a vertical passage, the lower chamber having' afuel-inlet and heilig' divided horizontally to form lower and uppersections, the lower section being' removable from under the uppersection, and a hopper for receiving' the metal to be melted, said hopperhaving a portion thereof extending' into the upper chamber andoverlying' the vertical passage.

l1. ln a furnace, a heating-chamber having a fuel-inlet in one end andcomposed of lower and upper sections, the upper section having' anopening in its top, and the lower section being' removable from underthe upper section, said sections having' their meeting' faces inclinedupwardly from the fuel-inlet.

12. ln a furnace, a shell divided tl'iroug'h its longitudinal center forforming' opposite sections, a continuous lining' within the shell, saidshell and lining having' openings in their tops and bottoms, means forclamping' the shell-sections together around the lining, acombustion-ehamber having' an opening' in its top communicating' withthe openings in the bottom of the shell and lining and a hopper for themetal to be melted extending' through the openings in the top of theshell and lining' into the interior of the lining'.

13. ln a furnace, the combination with a combiistioircliambei', a shellsupported above the combustion-chamber and having' an opening' in itsbottom communicating' with said combustion-chamber, said shell beingdivided through its longitudinal center for forming' opposite sections,a continuous lining' within the shell and provided with an opening' inits bottom in line with the opening' inthe bottom "feasts f of theshell, said lining' having' portions of its bottom inclining` downwardlytoward the opening' therein, and closures for the opposite ends of theshell.

14. ln a furnace, the combination of two chambers one above the otherand having' con ical recesses in their adjacent faces, and a doubleconical sleeve or bushing' seated in the conical recesses and providedwith a vertical passage communicating' with the interiors of saidchambers, the lower chamber having' a fueln inlet and the upper chamberprovided with a hopper having' a portion thereof overlying' the upperend of the said passage.

l5. The combination of a track, a carriage on the track. aheating-chamber having' a fuele inlet and composed of lower and uppersections, the lower section being' mounted upon the carriage and theupper section having a conical recess in its top, a second chambermounted upon the upper section of lthe lower chamber and having' aconical recess in its bottom, a double conical bushing or sleeve seatedin said recesses and having' a central passage communicating' with theinteriors of said chambers, and a hopper adapted to receive the materialto be melted, having' one end extending' into the upper chamber andoverlying' the upper end of said passage.

16. In a furnace, a heating-chamber having' a fuel-inlet and dividedlongitudinally in an inclined plane for forming' lower and uppersections, the lower section being' removable from under thc uppersection and provided with opposite side and end trunnions for thepurpose described, said upper section having' an inlet in its topE 1T.In a furnace, a chamber having' a fuelinlet in one end, said chamberbeing' divided longitudinally in an inclined plane for forming' lowerand upper sections, the lower section being' removable from under theupper section, and the upper section having' a conical recess in itstop, and a hollow conical sleeve orbushing'seated in said recess andcommunicating with the interior of the chamber.

18. ln a reverberatory furnace, two hori- Zontally-disposed shellsarranged one above the other and having' openings in their adjacentsides, in combination with a sleeve having' its ends seated in saidopenings, the lower shell having' its bottom portion separate from itstop and constituting' a removable ladle.

In witness whereof l have hereunto set my hand on this 9th day ofSeptember, 1904-.

AhllflUlt M. GAYLORD.

lVitnesses:

H. E. Cinisn, lHOWARD l. DnNIsoN.

